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EC-1050
[YD (WITH EURO-OBD)]
TROUBLE DIAGNOSIS
NOTE:
Any monitored item that does not match the vehicle being diagnosed is deleted from the display automatically.
ACTIVE TEST MODE
*:Leaving cooling fan OFF with CONSULT-II while engine is running may cause the engine to overheat.
REAL TIME DIAGNOSIS IN DATA MONITOR MODE
CONSULT-II has two kinds of triggers and they can be selected by touching “SETTING” in “DATA MONITOR”
mode.
Voltage [V]
Voltage, frequency, duty cycle or pulse
width measured by the probe.
Only “#” is displayed if item is
unable to be measured.
Figures with “#”s are temporary
ones.
They are the same figures as an
actual piece of data which was
just previously measured. [Hz] or
[%]
Frequency [msec], [Hz] or
[%]
DUTY-HI
DUTY-LOW
PLS WIDTH-HI
PLS WIDTH-LOW
MONITOR ITEM
ECM
INPUT
SIGNAL
MAIN
SIG-
NALS
CONDITION SPECIFICATION
TEST ITEM CONDITION JUDGEMENT CHECK ITEM (REMEDY)
POWER BAL-
ANCE
● Engine: After warming up, idle the
engine.
● A/C switch: OFF
● Shift lever: Neutral position
● Cut off each injector signal one at
a time using CONSULT-II.
Engine runs rough or dies.
● Harness and connectors
● Compression
● Fuel injector
COOLING FAN *
● Ignition switch: ON
● Operate the cooling fan at LOW,
MID, HI speed and turn OFF
using CONSULT-II.
Cooling fan moves at LOW, MID, HI
speed and stops.
● Harness and connectors
● Cooling fan motor
● Cooling fan relay
ENG COOLANT
TEMP
● Engine: Return to the original
trouble condition
● Change the engine coolant tem-
perature using CONSULT-II.
If trouble symptom disappears, see
CHECK ITEM.
● Harness and connectors
● Engine coolant temperature sen-
sor
● Fuel injector
GLOW RLY
● Ignition switch: ON (Engine
stopped)
● Turn the glow relay ON and OFF
using CONSULT-II and listen to
operating sound.
Glow relay makes the operating
sound.
● Harness and connectors
● Glow relay
EGR VOL CONT/
V
● Ignition switch: ON
● Change EGR volume control
valve opening step using CON-
SULT-II.
EGR volume control valve makes
an operating sound.
● Harness and connectors
● EGR volume control valve
PRES REGULA-
TOR
● Ignition switch: ON
● Change fuel rail pressure using
CONSULT-II.
Fuel leaks.
● Fuel line
● Fuel pressure relief valve
PUMP LEANT
CLEAR
● This mode is used for performing Fuel Pump Learning Value Clearing. Refer to EC-994, "Fuel Pump Learning
Value Clearing" .
TEARGET ETC
ANGLE
● Ignition switch: ON
● Change electric throttle control
actuator opening angle using
CONSULT-II.
The opening angle of throttle valve
is changed properly.
● Harness and connectors
● Electric throttle control actuator
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